Chapter 4.2, Problem 84E

To determine

To choose the correct option from the multiple choice question for the question.

Answer to Problem 84E

The option (b) is the correct option.

Explanation of Solution

In the experiment of the preceding exercise the subjects were randomly assigned to the different treatments. The most important reason for this experiment is that random experiment is a good way to create groups of subjects that are roughly equivalent at the beginning of the experiment. Thus, the option (b) is correct option.